20
IGBT D
IMMER
R
ACKS
Installation
& Operation
To connect load wiring:
1. Run load wiring to the top or bottom of the rack. If your rack has the optional Ground Bus, separate the load ground wires and route
them to this bus.
ote
: Load wires should not be fed through the sides of the enclosure.
2. If you have ground wires from your loads, strip 3/8" of insulation from them and connect using the torque values shown in the table
at right.
3. Separate the load neutral wires and route them to the load neutral terminals located on the neutral bus bar in the center of the rack
(see
Figure 2
on page 6). Strip 3/8” of insulation from the wires and terminate them using the torque values in the table below.
CAUTIO
: Use a separate wire for each neutral. Do not use common neutrals.
4. Route the load hot wires to their individual connections. The load hot terminals are located on the dimmer back plane on the left
side of the rack (see
Figure 2
on page 6 and
Figure 19
on the following page). If the load wires are top fed, work from top to bot-
tom on the dimmer back plane as you connect the hots for each circuit in turn. If they are bottom fed, work from the bottom up.
Important
: Follow the circuit numbers printed on the load terminal connectors. The load terminals are not sequential from top to bot-
tom! When wiring more than one rack, remember to add 96 to the numbers in the second rack, 192 to the third, etc.
5. Strip 3/8" of insulation from the load wires. Do not exceed the bend radius shown in
Figure 19
when inserting load wires.
6. Tighten all terminations to the torque values shown in the table below.
7. Dress load wires to the back of the rack.
Load Wiring
TERMINAL
WIRE SIZE
TIGHTENING TORQUE
(IN-LBS)
20A Load Lugs
#20 - #6 AWG
10.6 - 13.3
Neutral Bus
#10 - #14 AWG
50
#8 AWG
50
#6 AWG
50
Ground Bus
#10 - #14 AWG
50
#8 AWG
50
#6 AWG
50
!
